Texans starting running back Lamar Miller was limited in practice Wednesday after getting banged up and not finishing an overtime win over the Indianapolis Colts.
Miller rode a stationary bike during the portion of practice open to reporters.
If Miller can't go or is limited Sunday night against the Dallas Cowboys, he would be replaced in the lineup by backup Alfred Blue.
Meanwhile, starting cornerback Aaron Colvin is expected to miss at least six weeks, according to a league source not authorized to speak publicly, with an ankle injury.
Special-teams ace Brian Peters didn't practice due to an ankle injury.